Answer:I hope this helps
Elements are substances that are made from one type of atom. An element cannot be broken down into any other substance. ... A mixture is made by simply mixing together elements and compounds. No new chemical bonds are formed.
Explanation:
D. A section of DNA that codes for a Specific trait
Answer:
Almost all of the cells in your body share the same DNA as was found in that first cell*. For a cell to work, 1000's of these proteins must be made, each doing its particular job. Eyes and lungs are so different because different sets of proteins are made in the various eye and lung cells.
A biological process such as photosynthesis. 13. Billions of years ago, Earth's atmosphere<span> was composed </span>primarily<span> of carbon dioxide</span>
